Bottle-sealing cap.



PATBNTED MAY 26, 1908.

E. J. GODMAN BOTTLE SEALING CAP. APPLICATION PILPD sPPT.1319o7 INVENTOR.

fllfowzeys.

l WIM/55555 @Madd-d UNITED STATES PATENT OFFICE.

EMORY J'. GODMAN, OF JERSEY CITY, NEW JERSEY, ASSIGNOR TO STERLING SEAL COMPANY,

OF NEW YORK, N. Y., A CORPORATION OF MAINE.

BoTTLE-SEALING' CAP.

Specification of Letters Patent.

'.Patented May 26, 1908.

Application filed September 13, 1907. Serial No. 392,702.

- `in its construction, a crown, a pendent skirt and aI joint forming gasket, as will hereinafter fully appear.

yIt is a common practice in the manufacture of bottle sealing caps, to stiffen the edge of the skirt by heading or corrugation, and in the sealing operation to contract in diameter the stiffened edge, in order that it ma engage with the shoulder of-the bottle ead'. In such practice, the still'ening of the edge of the skirtbmakes it necessary to employ considerable power in the cap-aiiixing operation, dueto the increase in area of cross section of the edge of the skirt; and in the reduction in diameter of the stiflened edge, its projection beyond the bottle neck is consequently reduced and does not therefore afford as pronounced a surface for `engagement with the ordinary uncapping tool, as would be the case rif the original diameter of the stiil'ened edge were maintained.

My invention as hereinafter more particularly described, consists in providingr the edge of the skirt of the sealing cap with a flat horizontally-extending corrugated flange, and in the sealing operation, indenting the skirt at a point above'and independently of the 'flange so as to bring the inner surface of the skirt at that. point slightly under and in contact with ,the shoulder of the bottle head.-

By this means, the stiiened flange is not disturbed, but maintains its original diameter and furnishes a fiat corrugated surface with which the uncappin tool will engage without lippling therefrom, in the act of opening the ott e.

In thefurther description of the said invention which follows, reference is made to the accom )anying drawing forming a part hereof, and in which,"

Figure 1. is a top view of the improved sealing cap, and I4 ig. 2 an exterior edge View of the same. Fig. 3 is asectional View showing the cap as secured to a bottle head.

Referring now to the drawing, 1 is the bottle head, and 2 the crow-n of the sealing cap.

The skirt of the cap is denoted by 3, and the' corrugated flange of the cap by a.

4 represents the joint-forming gasket which is compressed between the lip b of the bottle head and the inner surface o the crown L.

The indentation of the skirt above the flange a is denoted by c and it is immaterial whether it is continuous, or consists of a multiplicity of depressions which are nearly in contact with each other.

In securing thecap to a bottle head the cap is placed 111 position over the bottle, and while downward pressure is applied to the crown to compress the joint-forming gasket, the indentation c is efected by suitable mechanical appliances.

I claim as my invention In combination with a bottle head having an annular shoulder, a sealing ca i which consists in a crown, and a cylindrical skirt which is provided with a liorizontally-exteuding exterior corrugated flange, the skirt of the cap independently of the flange, being reduced in diameter by indentation where the saine is below and ada ted t0 engage the shoulder of the bottle hear substantially as and for the purpose specified.

' EMORY J; GODMAN.'

Witnesses:

ALICE E. CAssEY, MAUD E. THOMPSON. 

